会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Drill feed control
    • 钻进料控制
    • US3897166A
    • 1975-07-29
    • US46081074
    • 1974-04-15
    • ADAMS RALPH D
    • ADAMS RALPH D
    • A61B17/16B23B47/18B23Q5/40B23B47/20
    • B23Q5/406A61B17/16Y10T408/18Y10T408/6771
    • Feed control comprises a frame attached to a drill motor and carrying an axially slidable guide shaft with a pressure foot at forward end to contact a work piece to be drilled. A lead screw is carried by the frame and rotatable about an axis parallel to the axis of the drill motor and drill bit. A nut member carried by the guide shaft engages the lead screw and prevents retraction of the guide shaft and relative advance of drill bit toward and into the work piece when axial force is applied. A drive train connected to the lead screw and the drive shaft rotates the former when the latter is rotated, and enables the nut member to ''''back off'''' along the lead screw so that the guide shaft retracts gradually at a predetermined rate and the bit advances at a corresponding rate. Since the bit cannot advance freely and independently, it cannot surge or jam when it breaks through the rear of the work piece. In preferred form, a clutch is provided in the drive train and actuated by load on pressure foot, which prevents backing off when not actually drilling. Device works in same way when applied to drill press or power feed machines mounted on fixtures or work pieces.
    • 进给控制包括一个连接到钻机马达的框架,并带有一个轴向可滑动的导向轴,该导向轴在前端具有一个压脚以接触待钻孔的工件。 引导螺杆由框架承载并且可围绕平行于钻头电机和钻头的轴线的轴线旋转。 由导向轴携带的螺母构件与引导螺杆接合,防止当施加轴向力时导向轴的退回和钻头相对于工件的前进。 连接到导螺杆的传动系和驱动轴在成型机旋转时使成形机旋转,并使螺母部件沿导螺杆“后退”,使导向轴以预定的速度逐渐缩回,并且钻头前进 以相应的速率。 由于钻头不能自由而独立地前进,因此当工件穿过工件的后部时,它不会发生浪涌或堵塞。 在优选形式中,离合器设置在传动系中并由压力脚上的负载致动,这防止在不实际钻探时脱落。 当应用于安装在固定装置或工件上的钻床或馈电机器时,装置以相同的方式工作。